md5加密技术

package com.eduask.md5;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;

import sun.misc.BASE64Decoder;
import sun.misc.BASE64Encoder;
//新建一个md5测试类;
public class TestMd5 {

private static String TestMd5(String pwd) throws NoSuchAlgorithmException {
//实体对象;
MessageDigest md5=MessageDigest.getInstance("md5");

byte[] buff=md5.digest(pwd.getBytes());
BASE64Encoder base=new BASE64Encoder();
pwd=base.encode(buff);
return pwd;
}
public static void main(String[] args) throws NoSuchAlgorithmException {
String pwd="123";
pwd =TestMd5(pwd);
System.out.println(pwd);
}
}